/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */
package org.apache.iotdb.db.sync.pipedata;

import org.apache.iotdb.commons.exception.IllegalPathException;
import org.apache.iotdb.db.engine.modification.Deletion;
import org.apache.iotdb.db.sync.pipedata.load.DeletionLoader;
import org.apache.iotdb.db.sync.pipedata.load.ILoader;
import org.apache.iotdb.tsfile.utils.ReadWriteIOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Objects;

public class DeletionPipeData extends PipeData {
    private static final Logger logger = LoggerFactory.getLogger(DeletionPipeData.class);

    private String database;
    private Deletion deletion;

    public DeletionPipeData() {
        super();
    }

    public DeletionPipeData(Deletion deletion, long serialNumber) {
        this("", deletion, serialNumber);
    }

    public DeletionPipeData(String sgName, Deletion deletion, long serialNumber) {
        super(serialNumber);
        this.database = sgName;
        this.deletion = deletion;
    }

    @Override
    public PipeDataType getPipeDataType() {
        return PipeDataType.DELETION;
    }

    @Override
    public long serialize(DataOutputStream stream) throws IOException {
        return super.serialize(stream)
                + ReadWriteIOUtils.write(database, stream)
                + deletion.serializeWithoutFileOffset(stream);
    }

    public void deserialize(DataInputStream stream) throws IOException, IllegalPathException {
        super.deserialize(stream);
        database = ReadWriteIOUtils.readString(stream);
        deletion = Deletion.deserializeWithoutFileOffset(stream);
    }

    @Override
    public ILoader createLoader() {
        return new DeletionLoader(deletion);
    }

    @Override
    public String toString() {
        return "DeletionData{" + "serialNumber=" + serialNumber + ", deletion=" + deletion + '}';
    }

    public Deletion getDeletion() {
        return deletion;
    }

    public String getDatabase() {
        return database;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        DeletionPipeData that = (DeletionPipeData) o;
        return Objects.equals(deletion, that.deletion)
                && Objects.equals(serialNumber, that.serialNumber);
    }

    @Override
    public int hashCode() {
        return Objects.hash(deletion, serialNumber);
    }
}
